o that we skip the root directory itself -- which must be "special cased" since it appears to be a "null... le:
: ${HOME:="/home/.nohome"}
${TMP:?"Error: Must have a valid Temp Variable Set"}
This one just u... n be anything; for an option with no argument: it must be yes or no.
brief
The brief option select... argument, else returns with code one.
An option must be of the form --option, only characters in the r
